Re: Bayesian examples not working

[Grant Ingersoll]

Hey Bill,

I've been having problems w/ the Bayesian examples too, but not enough  
time to look into them.  However, that is about to change and will be  
digging into it a bit more early next week or this weekend.

I will note a couple of things.  I've seen some reports of problems w/  
Maven 2.1.0 not working on Mahout.  Also, I believe the trunk version  
requires Hadoop 0.19.1, but check the POM to be sure.

In the meantime, any insight you have is appreciated.

-Grant

On Jun 19, 2009, at 3:03 PM, Bill Au wrote:

I am using the 0.1 release tar ball and the Hadoop job files  
contained in
it.  I am trying to run the twenty newsgroup example by following the
instructions in the Wiki.  I am not getting any errors nor exception  
but the
results are not correct.  Here is the output I got:

http://people.apache.org/~billa/mahout0.1-output

I am getting the same results for both Bayes and CBayes.  Any idea  
what I am
doing wrong?

I also want to run the example using the trunk so I checked it out  
and ran
"mvn install".  I found that the Hadoop job files are not being  
created due
to a test failure:

Running org.apache.mahout.clustering.kmeans.TestKmeansClustering
Tests run: 5, Failures: 1, Errors: 0, Skipped: 0, Time elapsed:  
34.979 sec
<<< FAILURE!

   <failure message="clusters[3] expected:&lt;4&gt; but was:&lt;2&gt;"
type 
= 
"junit 
.framework.AssertionFailedError">junit.framework.AssertionFailedError:
clusters[3] expected:&lt;4&gt; but was:&lt;2&gt;
       at junit.framework.Assert.fail(Assert.java:47)
       at junit.framework.Assert.failNotEquals(Assert.java:280)
       at junit.framework.Assert.assertEquals(Assert.java:64)
       at junit.framework.Assert.assertEquals(Assert.java:198)
       at
org 
.apache 
.mahout 
.clustering 
.kmeans 
.TestKmeansClustering.testKMeansMRJob(TestKmeansClustering.java:432)
</failure>

I am not sure how to fix this.  Is there anyway to build the Hadoop  
job
files without running the tests?

By the way, I am using maven 2.1.0 and Hadoop 0.18.3.

Bill